ugonna1992 ugonna1992
  • 24-03-2021
  • Mathematics
contestada

Use elimination to solve for x and y:
5x + 4y = 23
x - 4y = - 5
O (3, 2)
O (2,3)
0 (7. – 3)
0 (7,3)

Respuesta :

alimkhubaib21
alimkhubaib21 alimkhubaib21
  • 24-03-2021

Step-by-step explanation:

5x+4y=23

= x+y=23-5-4

=x+y=14

l think this is correct!!!!!

Answer Link
TcScott17
TcScott17 TcScott17
  • 24-03-2021
5x +4y=23
-5(x-4y=-5)

5x+4y=23
+(-5x+20y=25)

24y=48
y=2

Now plug y value into one of the equations and solve for x

X-4(2)=-5
X-8=-5
X=3

So the answer is (3,2)
Answer Link

Otras preguntas

The environment of Egypt caused Egyptians to view the world as A) an orderly and beneficent place. B) an unpredictable and mysterious place. C) a chaotic and fr
-12(x - 12) =-9(1 + 7x)
I need an answer for question 16. I currently have 24 + 4 = 24n + 4 but I’d like to know if i’m on the right track and what I need to do to solve the question
Explain what a, h, and k do to transform the following equation. Be sure to mention the shift or transformation each variable does and how if each varible is a
Estimate to the nearest dollar, the total cost: 23.45+3.98+16.66+12.08
Pls help 2 Question
i need an eassy the topic is , fun with friends in summer​
The width of a rectangle is 2x ^2 +9x -7 and length is x^2 -9
Explain how energy transformations are different from physical processes
the puritans believed in